The Ruby world celebrates its latest home grown business success, GitHub, who this week announced they've received $100m in funding from Andreessen Horowitz. Will every Rubyist eventually work there? Watch this space.

The popular BDD framework takes another step up the version ladder with 2.11. It supports the new 'named subject' syntax, you can stub constants for the duration of an example, and on Rails specs now run in a random order by default. And more, naturally.

Treat yourself with fast, zero-setup continuous integration. Import your projects and collaborators from GitHub in seconds, then focus on your work while Semaphore automatically checks every branch and push.

Arel is the beautiful relational algebra library that works alongside ActiveRecord in Rails 3 to let you do complex queries easily. Ben Hoskings shows off an interesting method Arel makes available to merge query conditions together.

If you need to calculate an average user's rating or sum up a number of votes, consider using the 'activerecord-reputation-system' gem. Here Ryan Bates covers the basics and presents a from-scratch solution.

minitest-rails is a library that enables you to test your Rails 3 apps using minitest, the testing framework that comes in the Ruby 1.9 standard library. Documentation and a short introductory screencast included.

webmachine-ruby is a Ruby port of Erlang's Webmachine which lets Rubyists expose interesting parts of the HTTP protocol to their applications in a declarative way. Don't understand? Check the examples.

Billing itself as the 'conference at the Intersection Of Ruby and Voice', the AdhearsionConf organizers have announced the conference will be back on October 20-21 in Palo Alto. No registration yet but the call for presentations is now open.